Aptitude - Ratio and Proportion - Discussion

Discussion Forum : Ratio and Proportion - General Questions (Q.No. 2)
2.
Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
2 : 5
3 : 5
4 : 5
6 : 7
Answer: Option
Explanation:

Let the third number be x.

Then, first number = 120% of x = 120x = 6x
100 5

Second number = 150% of x = 150x = 3x
100 2

Ratio of first two numbers = 6x : 3x = 12x : 15x = 4 : 5.
5 2

Discussion:
123 comments Page 13 of 13.

Lokesh said:   2 months ago
@Sujaathasree.

If the percentage increases or mentioned directly we can take it as 100+20% since the percentage increases directly to 100 and if loss or decrease by 20% then we should do 100-20%.
(6)

Bagavathsingh said:   2 months ago
Third number = x
First number = 20x/100
Second number = 50x/100
Assuming x = 10.

Put the value'
= (20*10/100) + 10 = 12,
= (50*10/100) + 10 = 15,
= 12:15.
= 4:5.
(13)

Ramya D said:   1 week ago
Assume the third number as X,
so x+20/100 // x+50/100,
120x/100 // 150x/100,
6/5 : 3/2 => 6 * 2 : 5 * 3 => 4 : 5.
(2)


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